Well-drilling machine.



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WELL DRILLING MACHINE.

APPLICATlON FILED JUNE 22. 191B.

W. L. DAYTON 64,1. M. SCOTT.

WELL DRILLING MACHINE,

APPLICATION FILED JUNE 22. ms.

Patented Apr. 29,1919.

awuewtozs 3 SHEETS-SHEET 2- W. L. DAYTON & J. M. SCOTT.

WELL DRILLING MACHINE.

APPLICATION FILED JUNE 22. 1913.

Patented Apr. 29, 1919.

3 SHEETS-SHEET 3 TINTTED snares Parana ora ion.

WILLIAIVI L. DAYTON AND JOHN. M. SCOTT, 0F FORT WORTH, TEXAS.

WELL-DRILLING MACHINE.

Application filed June 22, 1918.

To all whom it may concern:

Be it known that we, l/VILLIAM L. DAYTON and JOHN M. SCOTT, bothcitizens of the United States of America, residing at Fort lVorth, inthe county of Tarrant and State of Texas, have invented certain new anduseful Improvements in Well-Drilling Machines, of which the following isa specification.

Our invention relates to well drilling machines, construction and minehoisting machines, freight and passenger elevators, and various machinesusing derricks and cranes, and the object is to provide improvements andattachments which are relatively simple in construction and operationand which is provided with certain swinging gravityactuated devices bywhich the and expense and to provide improvements by which the machineis greatly increased in efficiency. Other objects and advantages will befully explained in the following description and the invention will bemore particularly pointed out in the claims.

Reference is had to the accompanying drawings which form a part of thisappli cation.

Figure 1 is a side elevation of the ma chine. Fig. 2 is a side elevationof the Ina-- chine, being the opposite side from. that shown in Fig. 1.Fig. 3 is a plan view of the machine. Fig. 4 is a. detail view of thecam arm and operating crank with rollers. Fig. 5 is a detail view of oneof the gear-controlling lcvers. Fig. 6 is a detail view of a variationin the driving gear. Fig. 7 is a detail view, showing a variation in theoperating cam for the walking beam.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The machine is provided with a rectangular upright frame having lowerlongitudinal beams 1 and 2 and upper longitudinal beams 3 and 4. Thebeams 3 and 4 are supported by corner uprights 5, 6, 7, and 8 which areattached to the lower and upper longitudinal beams. At the work end ofthe machine, the beams 5 and 7 are braced by a. cross-bar 9 which isattached to both uprights 5 and 7. The uprights 5 and 7 are furtherbraced by cross-bars 10. At the power end of the machine, the uprights 6and 8 are braced by cross-bars 11. The cross shafts hereinafterSpecification of Letters Patent. I

machine can be operated with much less driving power Patented Apr. 29,1212.. Serial No. 241,325.

set forth will further 5, 6, 7, and 8.

The machine is mounted on a wheeled truck, being supported thereon bythe side beams 1 and 2.

. For drilling, a master wheel 12 is rigidly mounted on a shaft 13 whichis journaled in the uprights 14 which are rigid with the frame members 1and 3 and 2 and 4. Means are provided for driving the wheel 12. Thewheel 12 is provided with internal gear teeth. or cogs 15. A power shaft16 is journaled in uprights 6 and 8 and provided with a power pulley 17rigid therewith. A balance wheel 18 is mounted on the other end of theshaft 16. A pinion 19 is rigid with shaft 16 for transmitting the powerfrom this shaft. The pinion 19 meshes with and drives a cog wheel 20which is rigid with a shaft 21. The shaft 21 carries a pinion 22 rigidtherewith. The pinion 22 meshes with and drives the internal gear wheel15 for elevating the drill 23. The master wheel 12 is a cog wheel andmeshes with and drives a pinion 24. The pinion 24 is rigid with a shaft25 and drives this shaft when the pinion 24 is in mesh with the masterwheel 12. The shaft 25 carries a. spool 26 rigid therewith for windingthe cable 27 which brace the uprights has one end attachedto wheel orspool 26 and the other end attached to the drill 23. The cable 27 runsfrom the spool 26 under a shaft 28 which is provided with anantifriction roller 29. The cable 27 then runs over an idler 30 and thendown under an idler 31 and then up over an idler 32 and then down to thedrill 23. This describes the course of the cable and the means foroperating the same for elevating the drill.

When the drill has been mounted in the manner described, it is actuatedby the following described mechanism. The pinion 24 is thrown out ofmesh with the cog wheel 12 by a hand lever 33 which is provided with a.fulcrum 34 pivoted in a bearing member 35 which is attached to thecrossbar 9. The bearing member 35 has notches 36 in the upper edge and aspring-actuated dog 37 carried by the lever 33 engages one of thenotches 36 to hold the lever33 in position. A link bar 38 is pivotallyconnected to the lever 33 by a pivot bolt 39 which projects through thebearing member 35 and the bearing member 35 has a. curved slot 40 forthe movement of the pivot bolt 39. The

link bar 38 ispivotally connected to a bellcrank lever 41 which isfulcrumed on a bar 42 and which engages the shaft for throwing thepinion 24 in and out of mesh with the cog wheel 12. The dog 37 when inone notch 36, will cause the levers to hold the wheel 24 in mesh withthe cog wheel 12, and when in the other notch 36, will cause the levers33 and 41 to hold the wheel 24 out of mesh with the wheel 12. Theupright 14 has an elongated bearing opening to permit adjustment of theshaft 25. At the required time the wheel 24 is thrown out of mesh withthe wheel 12 so that the drill can be actuated.

The roller 30 is carried by a swinging link 43 and this link is carriedby a walking beam 44 which is fulcrumed in uprights 45 which areattached to the beams 1, 3, 2, and 4. The walking beam 44 carries a camarm 46 rigid therewith. A crank 47 is rigid with shaft 13 and carries anantifriction roller 48. The cam arm 46 is attached to the walking beam44 by arms 49. WVhen the shaft 13 is driven by the wheel 12, the crank47 with its roller 48 will engage the cam arm 46 and So rock the beam 44which will by means of the link 43 and roller 30 lift the drill 23 andlet the drill fall at regular intervals.

A swinging weight 50 is used to coiiperate with the driving mechanismfor actuating the drill. The weight 50 is pivotally connected to thewalking beam 44 by means of a bar 51 which has a lug pivotally connectedto arms 53 which are attached to the beam 44. A bellcrank lever 54 isfulcrumed on the beam 44 and pivotally connected to the link 43 and a.rod 55 is pivotally connected to the lever 54 and the bar 51 above itspivotal connection with the beam 44. In operation, the crank 47 willengage the cam arm 46 and thus bear the end of the walking beam 44downwardly at that end. Thiswill raise the link bar 43 and thus elevatethe drill. \V'hile this operation is going on, the drill will be pullingon the lever 54 and the lever 54 will pull on the rod 55 and this rodwill pull on the bar 51 and tend to raise the weight 50 and does raisethis weight so that the weight 50 will be elevated by the weight of thedrill. The weight 50 will thus cooperate with the cam operated end ofthe walking beam to aid in raising the working end of the beam whichaction will elevate the drill. As the weight is gradually raised theleverage will be increased and the work accomplished by the weight willbe correspondingly increased. As the bar 51 is appreaching a position tobe in line with the beam 44, the leverage is being automaticallyincreased and this increase infieverage tends to balance the weight orloa of the drill. The driving mechanism can be operated with much lesspower than would be required without the weight. When the roller 48passes far enough it will release the cam arm 46, the work end of thebeam 44 will drop downwardly and the weight 50 will also drop so thatthe work end of the beam 44 will drop more freely. This lets the drillfall to do its work.

A brake mechanism is provided to regulate the speed of the machine. Abrake wheel 56 is mounted on shaft 13 and a strap brake 57 is passedaround the wheel 56 and attached to an upright bar 58 which is attachedto the beams 1 and 3. The other end of the strap 57 is attached to abrake lever 59 which is fulcrumed on the upright 58. The lever 59extends back to the work end of the machine for the convenience of theoperator and is retained in place by a bracket 60. The lever 59 is heldin the elevated inoperative position by a spiral spring 61. The brake isoperated by hearing down on the end 62 of the lever. hen it is released,the spring 61 replaces the lever to inoperative position. When themachine is drilling the spool 26 is locked against revolving by the Wormpinion 72 hereinafter described.

hen the beam 44 is not to be used in drilling, it is locked rigid in ahorizontal position by an arch lock 63 which is pivotally mounted on thebeams 3 and 4. This stop or look is actuated by a lever 64 which isfulcrumed on the inside of the upright 5 and pivotally connected to alink bar 65 which is pivotally connected to ar crank 66 which is rigidwith the lock 63. The stop can be operated by using the lever 64. Thecrank 47 is loosely mounted on the shaft 13 and is locked thereto byclutch members 65 and 66. Simultaneously with the locking of the beam 44against movement the crank '47 is released from shaft 13 by shifting theclutch member 66 out of mesh with clutch member 65. This is done by abell-crank lever 67 which is fulcrumed on a bracket 68. One arm of thelever 67 engages a collar 69 which is integral with the clutch member 66and the other arm of this lever is connected to the crank 66 by a linkbar 70. The clutch members are held normally in mesh with each other bya spring 71. When the beam 44 is locked against movement and the clutchmembers 66 and 67 are disconnected the machine is used for bailing thewell or for placing or replacing casing or for other purposes.

The length of the stroke of the drill is varied by varying the length ofthe cable 27. Means are provided for winding the cable 27 more or lesson the spool 14. The pinion 24 is thrown out of mesh with cog wheel 12by lever 33, as above described. At the same time the pinion 24 isthrown out of mesh with cog wheel 12, the pinion 24 is thrown in meshwith a worm wheel 72 which is provided with a shaft 73. By means of thepinion 24, worm wheel 72, shaft 73, and a crank 74 for shaft 73, thespool 26 can be revolved in either direction for making the cable 27throw more or less to vary the stroke of the drill, and for feeding. thecable to the drill as the drill goes deeper.

When the machine is not being used for actuating the drill, the speed ofthe wheel 12 and shaft 18may' be driven much faster. A cog wheel 75 isrigid with the wheel 12. The pinion 22 which, when the machine isdrilling, engages the internal cog wheel 15, may be shifted to engagethe cog wheel 75 which is much smaller in diameter than the internalgear wheel 15. This will increase the speed of the shaft 13 withoutincreasing the speed of the shaft 21. The shifting of the pinion 22 isaccomplished by a lever bearing 76 which is fulcrumed on a bracket 77and which engages the hub of pinion 22 loosely. The lever bearing 76 isactuated by a link bar 78 which is pivotally connected thereto andpivotally connected to an upstanding crank 7 9 which is rigid with arocker shaft 80'. The-shaft 80 is actuated by a link bar 81 which ispivotally connected to an upstanding crank 83" which is rigid with shaft80 and pivotally connected to a lever 8-2 which is aduplicateinconstruction of the lever 33, shown in Fig. 5, and has similarequipment. The lever 82 can be thus used to shift the pinion 22 intomesh with internal gear wheel 15 or into mesh with the pinion 75 forchanging speed and for reversmg purposes.

The machine is provided with a spool or drum 8 1 which is journaled inbearings 85 and 86. The spool 8i is driven by a pinion 87 which isadapted to be thrown in mesh with cog wheel 12. The bearing 86 has anelongated bearing opening for the spool shaft 89 and a link bar 90 ispivotally connected to the shaft 89 and pivotally connected to a lever91 which is fulcrumed on the upright 7. The lever 91 may be used tothrow the pinion 87 in mesh with the wheel 12 for bailing the well. Thelever 91 will hold the shaft 89 in whatever position that may berequired.

The variation shown in Fig. 6 consists in substituting a friction drivefor the pinion 2'2 and cooperating gearing. A friction pinion 92 isprovided and an internal friction wheel 93 takes the place of gear wheel15 and a friction pinion 9st takes the place of the pinion 75.

The variation shown in Fig. 7 consists in using wrist pins 95 instead ofthe crank 47 on shaft 13. The wristpins may be carried by the masterwheel. The cam arm 16 with the attaching arms 49 is attached to thewalking beam 44 and the devices operate in the same manner, asthe arm 16and crank 17 with the rollers 48.

Various other changes in the construction,

proportion, and arrangement of the several parts may be made withoutdeparting from our invention.

hat we claim, is,

p 1 A well drilling machine having a frame, a derrick pivotally mountedat the work end of said frame, a roller carried thereby, a cable spooljournaled in said frame, a cable attached thereto and mounted on saidroller and a drill attached to said cable, and means for operating saidcable consisting of a walking beam fulcrumed on said frame and carryinga cam arm, means ried by said cable, a walking beam fulcrumed on saidframe and carrying at one end swingingmeans for actuating said cable andat the other end a swinging weight operatively connected to saidswinging actuating means, and means for rocking said walking beam.

3. In a well drilling machine provided with a frame having a derrick atone end provided with a roller, a cable spool journa-led in said frame,a cable attached thereto and mounted on said roller and a drill carriedby said cable, a walking beam; fulcrumed on said frame and carrying abell crank lever, a swinging bar pivotally con nected to said lever andcarrying a roller engaging said cable, a swinging weight carried on theother end of said beam and operativcly connected to said lever, andmeans for rocking said beam.

1. In a well drilling machine provided with a frame having an idlermounted in one end, a cable spool journaled in said frame, acableattached thereto and mounted on said roller and a drill carried by saidcable, a walking beam fulcrumed on said frame, a bell crank leverfulcrumed on one end of said frame, a swinging link bar carried by saidlever and carrying a roller engaging said cable, a bar pivotally mountedon the other end of said beam and a weight carried by said bar, meansfor rocking said beam, and means operatively connecting said bell-cranklever and the last mentioned bar.

5. In a well drilling machine provided wit-h a frame, a derrick mountedon the work end of said frame and a roller carried by said derrick, acable spool journaled in said frame, a cable attached to said spool andmounted on said roller and a drill carried by said cable, a Walking beamfulcrumed on.

said frame, a cam arm rigid therewith, an actuating shaft j ournaled insaidframe and a crank mounted on said shaft and provided with rollersfor engaging said cam arm, means for driving said shaft for actuatingsaid beam, a bell crank lever fulcrumed on the work end of said beam, aswinging bar pivotally connected to said lever and provided with aroller engagin said cable between said spool and the ro ler on saidderrick, a radial bar pivotally connected to the other end of said beamand having an arm projecting above said beam and a weight carried by thelower end of said radial bar, and a rod connecting said lever and saidprojecting arm whereby said weight cooperates with the driving means foractuating said walking beam.

6. In a well drilling machine rovided with a frame having a derrick at te working end provided with a roller, a cable spool journaled in saidframe, a cable attached thereto and mounted on said roller and a drillcarried by said cable, a walking beam fulcrumed on said frame andprovided with a swinging arm carrying a roller engaging said cablebetween said spool and said first named roller, means for actuating saidwalking beam, and a weight and a swinging bar carrying said weight andpivotally connected to the other end of said walking beam whereby saidweight cooperates with said actuating means for rocking said beam.

7. In a well drilling machine provided with a frame having a cabledirecting roller at the work end of said frame, a cable spool journaledin said frame, a cable attached thereto and mounted on said roller, awalk ing beam fulcrumed on said frame and provided with a swinging armcarrying a roller engaging said cable between said spool and said cabledirecting roller, a cam arm rigid with said beam, an actuating shaft anda master wheel rigid with said shaft and provided with internal andexternal cog wheels and a pinion rigid therewith, gearing for drivingsaid actuating shaft including a shiftabl pinion, means carried by saidactuating shaft for actuating said cam arm, means for causing saidshiftable pinion to engage said internal cog wheel or said pinion, andmeans for varying the stroke of the drill carried by said cableconsisting of a pinion adapted to engage said external cog wheel mountedon said spool shaft for driving the same, and means for driving the lastnamed pinion when thrown out of mesh with said external gear wheel.

8. In a well drilling machine pro-vided with a frame having a cabledirecting roller at the work end of the machine, a cable spool journaledin said frame, a cable attached thereto and mounted on said roller andcarrying a drill, a walking beam fulcrumed on said frame and providedwith a swinging arm carrying a roller engaging said cable between saidspool and said cable directing roller, gearing for actuating said beamfor operating said drill, means for locking said beam against movementwhen said machine is not drilling, gearing for operating said cable whenused for other purposes than drilling, and means for shifting thegearing of the machine for different purposes.

9. In a well drilling machine provided with a frame having a cabledirecting roller at the work end of the machine, a cable spool journaledin said frame, a cable attached thereto and mounted on said roller andcarrying a drill, a master wheel provided with operative connectionswith said cable for operating the same, a pinion for driving said spoolmeshing with said master wheel, means for throwing said pinion out -ofmesh with said master wheel, and a worm pinion for operating said spooldriving pinion when not in mesh with said master wheel.

10. In a well drilling machine provided with a frame, a walking beamfulcrumed on said frame, a drill operating cable, a working connectionon one end of said walking beam with said cable for actuating saidcable, means for actuating said walking beam, and a swinging weight'onthe other end of said walking beam for balancing the load carried bysaid cable.

11. In a well drilling machine provided with a frame, a walking beamfulcrumed on said frame, a drill operating cable operatively connectedwith said machine, a working connection on one end of said beam withsaid cable whereby said beam actuates said cable, means for operatingsaid walking beam, a weight, and a swinging bar pivotally connected tothe other end of said beam and carrying said weight at the other end forautomatically increasing the balancing effect during a stroke of thedrill.

12. In a well drilling machine provided with a frame, a walking beamfulcrumed on said frame, a drill opera-ting cable operatively connectedwith said machine, a working connection on one end of said beam withsaid cable whereby said beam operates said cable, means for actuatingsaid walking beam, a bar pivotally connected to the other end of saidbeam and provided with an upwardly projecting arm, a weight carried bythe lower end of said bar, and a bar pivotally connected to said workingconnection and pivotally connected to said upwardly projecting armwhereby said weight automatically balances the load carried by saidcable.

13. In a well drilling machine provided with a frame having a cabledirecting roller at the work end of the machine, a cable spool journaledin said frame, a cable attaehed thereto and mounted on said roller andcarrying a drill, a master Wheel provided with operative connectionsWith said cable for operating the same, a pinion for driving saidspoolni'eshing with said. master Wheel, means for throwing said pinionout of mesh with said master Wheel, a brake Wheel rigid With said masterWheel, a strap brake attached to a rigid portion of said frame andengaging said Wheel, and a lever fulcrumed on said frame With one endattached to said brake and the other end projected out at the Work endof said machine.

14. In a well drilling machine provided With a frame, a Walking beamfulcrumed on said frame, a drill operating cable, a Working connectionon one end of said Walking beam with said cable for actuating saidcable, a master Wheel and shaft therefor for actuating said Walkingbeam, a swinging Weight on the other end of said Walking beam forbalancing the load carried by said cable, a brake Wheel rigid With saidmaster Wheel, a strap brake engaging said brake Wheel, and a lever foractuating said brake.

In testimony whereof, We set our hands, this 15th day of June, 1918.

WILLIAM L. DAYTON. JOHN M. SCOTT.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G. V

